203130232311000 has 64 divisors (see below), whose sum is σ = 633766324819680. Its totient is φ = 54168061948800.

The previous prime is 203130232310969. The next prime is 203130232311001. The reversal of 203130232311000 is 113232031302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203130232311001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33855035719 + ... + 33855041718.

Almost surely, 2^{203130232311000} is an apocalyptic number.

203130232311000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203130232311000 is an abundant number, since it is smaller than the sum of its proper divisors (430636092508680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

203130232311000 is a wasteful number, since it uses less digits than its factorization.

203130232311000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67710077461 (or 67710077447 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 203130232311000 its reverse (113232031302), we get a palindrome (203243464342302).

The spelling of 203130232311000 in words is "two hundred three trillion, one hundred thirty billion, two hundred thirty-two million, three hundred eleven thousand".